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Full Discussion: grep/awk and bring multiple lines forward
Top Forums UNIX for Dummies Questions & Answers grep/awk and bring multiple lines forward Post 302490088 by klysdale on Monday 24th of January 2011 12:04:11 AM
Old 01-24-2011
grep/awk and bring multiple lines forward
Hello all, I have a question regarding grep and pulling the result forward to the next carriage return or line space. Sorry if I have terminology incorrect. I have the following data set.

Line1
Line2
Line3

Line5
Line6
Line7

Line9
Line10
Line11

I would like to grep for a pattern and have it pull all data forward to the next space. So if my match is in line1. I would see:
Line1
Line2
Line3

I would also like to go Northbound with it. So if my match is in Line6, I would see:

Line5
Line6
Line7

I can do something similar using grep -A, however, the number of lines and where the line spaces could occur is totally variable. Will a command accomplish this without the need for a Perl script? Any assistance is greatly appreciate.
 

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LEARN ABOUT POSIX

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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